- psychedelic - producing distorted sensory perceptions and feelings or altered states of awareness or sometimes states resembling psychosis; "psychedelic drugs like psilocybin and mescaline"
Antonym: nonpsychoactive (indirect, via psychoactive)
- psychedelic - having the vivid colors and bizarre patterns associated with psychedelic states; "a psychedelic painting"
Antonyms: colorless, colourless (indirect, via colorful)
- psychedelic - of a mental state characterized by intense and distorted perceptions and hallucinations and feelings of euphoria or sometimes despair; "a psychedelic experience"
Antonym: unagitated (indirect, via agitated)